fruit 2 5

Tag: "fruit" at biology news

Researchers find gland that tells fruit flies when to stop growing

... physiology of Drosophila melanogaster, the common fruit fly, have discovered an organ that assesses the si...ough a major endocrine organ, so they screened all fruit fly endocrine glands, enlarging or reducing them and studying the effect on body size. "The only th...

Plant wounds trigger bacteria

...gall disease, which takes a large economic toll on fruit and wine-grape crops each year. "Mutant forms of...rs during winter and a wound forms in spring. Such fruit trees as cherries and peaches, raspberries and high-quality vine grapes like chardonnay and cabernet...

Zebrafish may hold key to improved cancer research

...vergent evolution in species ranging from worms to fruit flies, fish and humans. When it functions normally, B-myb appropriately regulates cell proliferation. When it becomes mutated, either through genetic predisposition or environmental influences, the formation of tumors can dramatically increase, scie...

Regenerating worms help elucidate stem cell biology

...mily and is most similar to PIWI proteins found in fruit flies. According to Sánchez Alvarado, PIWI protein...play a role in regulating stem cells in plants and fruit flies, as well as humans. "This encompasses millions of years of evolution," he said. "Still, we don...

Seeing the forest and the trees

... healthy forest provides such as soil stability or fruit production that might arise from a single extinction scenario. "In general, we found that when you have more species, things are more predictable," said Bunker, who was lead author on the study. "It's like having a diversified investment portfolio. ...

Researchers discover why melanoma is so malignant

...re embryo shape that its mutated form can cause in fruit flies). Slug is active in the neural crest, an early embryonic cluster of cells that eventually gives rise to a variety of cell types in the adult, including dermal melanocytes. In this early embryonic stage, Slug enables the neural crest cells to tr...

New clues to the dark side of a key anti-tumor guardian

...ed this week, researchers studying p53 function in fruit flies show new evidence that despite the protectiv...of disrupting this protein in the neurons of adult fruit flies. They found that expression of a so-called "dominant-negative" version of p53--that is, a disf...

Fruit fly research set to revolutionize study of birth defects

A Queen's University study of fruit flies that may revolutionize the way birth defects...n their systems. The study of the drug's effect on fruit flies has allowed Queen's researchers including graduate student Joslynn Affleck to identify the gen...

Health benefits of a Christmas brandy

...So when you are enjoying a slice of brandy-infused fruit cake or a drink of good quality brandy over Christmas you can put your mind at rest that this amber liquid isn't too bad for you at all. In moderation, of course." Red wine is famously known as an effective antioxidant so it stands to reason that br...

FSU biologists describe key role of signal-transcribing gene during cell cycle

...cell-to-cell signaling and dysfunction observed in fruit flies is applicable to mammals, which also possess genes Notch and Cut," said Deng. The researchers traced the journey of transmissions originating from Notch ?? which carries information gleaned from other cells ?? following the signals down the No...

New technique multiplies life span in simple organisms

...IR2 gene can promote longevity in yeast, worms and fruit flies. That finding was covered widely and incorporated into anti-aging drug development programs at several biotechnology companies. Now, molecular geneticists at the University of Southern California suggest that SIR2 instead promotes aging. The...

Past experience of pheromones induces dominant courtship behavior in fruit flies

...erplay between pheromone signaling and behavior in fruit flies, researchers have begun to understand how an...of Manchester, United Kingdom. When an adult male fruit fly encounters a young male fly, he will actively court the younger individual, sometimes becoming a...

Molecular research suggest shift needed in how some drugs are created

...ys a crucial role in the innate immune response of fruit flies to fungal infection. IRAK-4 plays a similar role in humans and animals. The hope is that drugs can be developed to target the molecule-binding pathway, which would be beneficial for treating arthritis and reducing inflammation, said Nair, who ...

Researchers develop new method to help find deadly malaria parasite's Achilles heel

...ied model organisms -- yeast, a nematode worm, the fruit fly, and a bacterium that causes digestive-tract ulcers in humans. The authors of the study, Trey Ideker, a professor of bioengineering at UCSD's Jacobs School of Engineering, and two graduate students, Silpa Suthram and Taylor Sittler, said the mala...

Drunken elephants: The marula fruit myth

...or elephants to become intoxicated from eating the fruit of the marula tree. "Elephants display many beha... for marula fruit, gathering around trees when the fruit is in season. Fallen marula fruit may naturally ferment to an ethanol content of approximately 3 per...

Tracking the memory trace

...e topic that finds a memory trace in Drosophila or fruit flies is formed in a pair of neurons called the dorsal pair medial neurons, but only 30 minutes after the fact and only through the mediation of a gene called, ironically, amnesiac. (A memory trace is a chemical change in tissue that represents the f...

Engineers discover why toucan beaks are models of lightweight strength

...ed beaks for a variety of purposes, from gathering fruit from the tips of tree branches, to defending themselves. Bird beaks are typically either short and thick or long and thin. The Meyers team decided to prospect for a novel material in toucan beaks because they are both long and thick. Emerald Forest...

UCSD study finds anthrax toxins also harmful to fruit flies

...and death in mammals have similar toxic effects in fruit flies, according to a study conducted by biologist...ngs of the National Academy of Sciences, show that fruit flies can be used to study the link between the biochemical activities and physiological effects of ...

Predators keep the world green, ecologists find

...stem had disappeared from small islands, including fruit eaters and predators of vertebrates, leaving a hyperabundance of generalist herbivores such as iguanas, howler monkeys and leaf-cutter ants. "Mere numbers do not do justice to the bizarre condition of herbivore-impacted islets," the authors wrote. "...

Researchers unlock how cells determine their functions

...wn as epigenetic activators (such as Ash1 from the fruit fly Drosophila), bind to their target DNA and activate genes that determine what function a cell will have in the body. "The fact that these epigenetic activators, such as Ash1, turn on the expression of specific target genes has been known for som...

1 2 3 4 5 6 7 8 9 10